Adrian wrote:

What HAS happened to "Steam on the Met"?

Have I just missed it the last few years, or has it slunk off?

Steam on the Met was last held in May 2000, being suspended after that
in preparation for the introduction of the PPP.

Having said that, LU's Safety Case (not currently available on the TfL
website, as it's being superseded) *did* allow for the operation of
"heritage" main line and underground stock and, indeed, the Traffic
Circular mentions a 10kph (sic) speed limit for steam locos over a
bridge near Wembley Park.

Cheers,

Barry